John e



(No Model.)

J; B. PIERCE &-J. BOND.

STEAM RADIATOR.

7 No. 316,055. Patented Apr. 21, 1885.

Vii'itnesses.v

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PATENT v vJOHN B. PIERCE AND JOSEPH BOND, OF BUFFALO, NEYV YORK.

STEAM-RADIATO R.

SPECIFICATION forming part of Letters Patent No. 316,055, dated April21, 1885.

Application filed December 28 1883. (No model.)

To all whom it may concern.-

Be it known that we, JOHN B. PIERCE and J OSEPH Bonn, citizens of theUnited States, residing in Buffalo, in the county of Erie and State ofNew York, have invented certain new and useful Improvements inSteam-Radiators, of which the following is a specification.

The object of this invention is to produce a simple, cheap, and durablesteamradiator for heating buildings, 850., all of which will be fullyand clearly hereinafter shown and explained by reference to theaccompanying drawings, in which- Figure 1 is a side elevation of asingle section of the radiator. Fig. 2 represents a side elevation of aseries of sections put together, showing the radiator complete. Fig. 3is a vertical section through a series of radiatorsections in line a; m,Fig. 1. Fig. 4 is a top view of a radiator-section. Fig. 5 is anenlarged cross-section through one side of a radiator-section in line z2, Fig. 1; and Fig. 6 is a vertical central section through the lowerportion of a radiator-section.

The sides of the radiator-section a a are in the form of a rhombus incross-section, having the fiat sides a (See Fig. 5.) Each side a a is athin shell of cast-iron and of an even thickness throughout andperfectly plain, so that all the benefit possible from the steam isobtained, as all parts of the shell are of an even thickness, having nothick or uneven portions toobstruct the passage of the heat. Besides,the form of the sections in cross-section exposes a great deal ofsurface in a given space and permits a freer circulation of air than theforms usually used for such purposes. Each section is provided near thetop with a small projection, a (L The one marked a is provided with apointed end, ed, and a has a depression, a of corresponding form, toreceive the projecting portion of a.

b is the binding-rod for the purpose of holding the top of the sectiontogether. The lower portion of the sections are held together by theshort tubes or plain nipples b, the tubes being put in place and thewhole forced together by a hydraulic press or other well- Of course thesections may be known means.

secured together by screw-threaded nipples v in the usual way; but theywould not answer the purpose so well and could not be so cheaplyconstructed. The parts 1) between the sections being cylindrical, thereis no base upon which dust can gather in any great quantities. Theopenings 1) b may be placed (as b is) to the left-hand side of thesection, and the open ing b on the opposite side of the section may beplaced to the right, as shown by the dotted lines. (See Fig. 1.) In thisway the steam would run diagonally from one section to the other as itcirculates through them. 'A diaphragm, b may be placed between theopenings b b", if required, (see Fig. 6;) or said openings may be setdirectly opposite each other, if desired.

The object in making the nipples straight instead of conical is, that,when the holes and nipples are made perfectly straight and the nipplesslightly larger, and the whole forced together by a powerful press, avery strong connection is made, being almost as strong as if theradiator sections were formed in one solid piece, and consequently nobinding-rod is required to hold them together. The sections, beingformed in one piece, are stronger, more durable, and not liable to leak,and can be more cheaply made, and being in the form of a rhombus, orsubstantially so, form, when a series are put together, as abovementioned, a more compact radiator and expose a larger heating-surfacein proportion to the space occupied. It also leaves a greater spacebetween the sections for a more free circulation of air than it would ifmade in the ordinary way with a base, as a base obstructs thecirculation of the air.

It will be noticed that in our construction the usual base is dispensedwith, so that there is nothing to obstruct the free circulation of 0 airupward from the bottom between the sections.

We are aware that the sections of a radiator have been put together withconical or taper nipples, the sections being provided with acorresponding taper-hole to receive them. It will be readily seen that atapernipple will instantly separate from the sec-- tion when once itbecomes loose. We thereput together, substantially as and for thepurfore do not claim such construction; but poses described.

What we do claim as our invention is- A radiator consisting of a seriesof radig g 5 ator-sections having plain or smooth straight J openings bb, in combination with a series Witnesses: of plain short tubes ornipples of equal dia- JAMEs SANGSTER,

ameter throughout, the whole combined and A. J SANGSTER.

